---
_id: '10534'
abstract:
- lang: eng
  text: For many years, fullerene derivatives have been the main n-type material of
    organic electronics and optoelectronics. Recently, fullerene derivatives functionalized
    with ethylene glycol (EG) side chains have been showing important properties such
    as enhanced dielectric constants, facile doping and enhanced self-assembly capabilities.
    Here, we have prepared field-effect transistors using a series of these fullerene
    derivatives equipped with EG side chains of different lengths. Transport data
    show the beneficial effect of increasing the EG side chain. In order to understand
    the material properties, full structural determination of these fullerene derivatives
    has been achieved by coupling the X-ray data with molecular dynamics (MD) simulations.
    The increase in transport properties is paired with the formation of extended
    layered structures, efficient molecular packing and an increase in the crystallite
    alignment. The layer-like structure is composed of conducting layers, containing
    of closely packed C60 balls approaching the inter-distance of 1 nm, that are separated
    by well-defined EG layers, where the EG chains are rather splayed with the chain
    direction almost perpendicular to the layer normal. Such a layered structure appears
    highly ordered and highly aligned with the C60 planes oriented parallel to the
    substrate in the thin film configuration. The order inside the thin film increases
    with the EG chain length, allowing the systems to achieve mobilities as high as
    0.053 cm2 V−1 s−1. Our work elucidates the structure of these interesting semiconducting
    organic molecules and shows that the synergistic use of X-ray structural analysis
    and MD simulations is a powerful tool to identify the structure of thin organic
    films for optoelectronic applications.
acknowledgement: J. D. gratefully acknowledges the China Scholarship Council (CSC
  No. 201606340158) for supporting his PhD studies. S. S. thanks J. Antoja-Lleonart
  for insightful discussions on simulating the X-ray diffraction patterns. Part of
  the work was sponsored by NWO Exact and Natural Sciences for the use of supercomputer
  facilities (Contract no. 17197 7095). Regarding S. S., R. A., R. W. A. H., J. C.
  H., and M. A. L., this is a publication by the FOM Focus Group “Next Generation
  Organic Photovoltaics”, participating in the Dutch Institute for Fundamental Energy
  Research (DIFFER). The ESRF is acknowledged for providing the beamtime. J. D. and
  G. P. are grateful to the BM26B staff for their great support during the beamtime.
  M. A. L., D. M. B. are grateful for the financial support of the European Research
  Council via a Starting Grant (HySPOD, No. 306983).
article_processing_charge: No
article_type: original
author:
- first_name: Jingjin
  full_name: Dong, Jingjin
  last_name: Dong
- first_name: Selim
  full_name: Sami, Selim
  last_name: Sami
- first_name: Daniel
  full_name: Balazs, Daniel
  id: 302BADF6-85FC-11EA-9E3B-B9493DDC885E
  last_name: Balazs
  orcid: 0000-0001-7597-043X
- first_name: Riccardo
  full_name: Alessandri, Riccardo
  last_name: Alessandri
- first_name: Fatimeh
  full_name: Jahani, Fatimeh
  last_name: Jahani
- first_name: Li
  full_name: Qiu, Li
  last_name: Qiu
- first_name: Siewert J.
  full_name: Marrink, Siewert J.
  last_name: Marrink
- first_name: Remco W.A.
  full_name: Havenith, Remco W.A.
  last_name: Havenith
- first_name: Jan C.
  full_name: Hummelen, Jan C.
  last_name: Hummelen
- first_name: Maria A.
  full_name: Loi, Maria A.
  last_name: Loi
- first_name: Giuseppe
  full_name: Portale, Giuseppe
  last_name: Portale
citation:
  ama: 'Dong J, Sami S, Balazs D, et al. Fullerene derivatives with oligoethylene-glycol
    side chains: An investigation on the origin of their outstanding transport properties.
    <i>Journal of Materials Chemistry C</i>. 2021;9(45):16217-16225. doi:<a href="https://doi.org/10.1039/d1tc02753k">10.1039/d1tc02753k</a>'
  apa: 'Dong, J., Sami, S., Balazs, D., Alessandri, R., Jahani, F., Qiu, L., … Portale,
    G. (2021). Fullerene derivatives with oligoethylene-glycol side chains: An investigation
    on the origin of their outstanding transport properties. <i>Journal of Materials
    Chemistry C</i>. Royal Society of Chemistry. <a href="https://doi.org/10.1039/d1tc02753k">https://doi.org/10.1039/d1tc02753k</a>'
  chicago: 'Dong, Jingjin, Selim Sami, Daniel Balazs, Riccardo Alessandri, Fatimeh
    Jahani, Li Qiu, Siewert J. Marrink, et al. “Fullerene Derivatives with Oligoethylene-Glycol
    Side Chains: An Investigation on the Origin of Their Outstanding Transport Properties.”
    <i>Journal of Materials Chemistry C</i>. Royal Society of Chemistry, 2021. <a
    href="https://doi.org/10.1039/d1tc02753k">https://doi.org/10.1039/d1tc02753k</a>.'
  ieee: 'J. Dong <i>et al.</i>, “Fullerene derivatives with oligoethylene-glycol side
    chains: An investigation on the origin of their outstanding transport properties,”
    <i>Journal of Materials Chemistry C</i>, vol. 9, no. 45. Royal Society of Chemistry,
    pp. 16217–16225, 2021.'
  ista: 'Dong J, Sami S, Balazs D, Alessandri R, Jahani F, Qiu L, Marrink SJ, Havenith
    RWA, Hummelen JC, Loi MA, Portale G. 2021. Fullerene derivatives with oligoethylene-glycol
    side chains: An investigation on the origin of their outstanding transport properties.
    Journal of Materials Chemistry C. 9(45), 16217–16225.'
  mla: 'Dong, Jingjin, et al. “Fullerene Derivatives with Oligoethylene-Glycol Side
    Chains: An Investigation on the Origin of Their Outstanding Transport Properties.”
    <i>Journal of Materials Chemistry C</i>, vol. 9, no. 45, Royal Society of Chemistry,
    2021, pp. 16217–25, doi:<a href="https://doi.org/10.1039/d1tc02753k">10.1039/d1tc02753k</a>.'
  short: J. Dong, S. Sami, D. Balazs, R. Alessandri, F. Jahani, L. Qiu, S.J. Marrink,
    R.W.A. Havenith, J.C. Hummelen, M.A. Loi, G. Portale, Journal of Materials Chemistry
    C 9 (2021) 16217–16225.
date_created: 2021-12-12T23:01:27Z
date_published: 2021-12-07T00:00:00Z
date_updated: 2023-08-17T06:18:44Z
day: '07'
ddc:
- '540'
department:
- _id: MaIb
doi: 10.1039/d1tc02753k
external_id:
  isi:
  - '000688135700001'
file:
- access_level: open_access
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  creator: cchlebak
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  date_updated: 2021-12-13T09:24:42Z
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has_accepted_license: '1'
intvolume: '         9'
isi: 1
issue: '45'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '12'
oa: 1
oa_version: Published Version
page: 16217-16225
publication: Journal of Materials Chemistry C
publication_identifier:
  eissn:
  - 2050-7526
  issn:
  - 2050-7534
publication_status: published
publisher: Royal Society of Chemistry
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Fullerene derivatives with oligoethylene-glycol side chains: An investigation
  on the origin of their outstanding transport properties'
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 9
year: '2021'
...